python reader: fix leaf level querying

2026-02-04 10:51:07 +00:00 · 2022-07-18 21:00:46 +08:00
parent 0a153bf127
commit de687baf61
2 changed files with 4 additions and 3 deletions
--- a/python/pmtiles/reader.py
+++ b/python/pmtiles/reader.py
@@ -72,6 +72,8 @@ class Reader:
        else:
            if len(self.header().leaves) > 0:
                level_diff = z - self._leaf_level()
+                if level_diff < 0:
+                    return None
                leaf = (
                    self._leaf_level(),
                    x // (1 << level_diff),